Sealing ring for pipe coupling



FIG. 1 is a front perspective view of a sealing for a pipe coupling showing my new design;

FIG. 2 is a side view of the sealing ring;

FIG. 3 is a top plan view of the sealing ring;

FIG. 4 is a side view of the sealing ring; and,

FIG. 5 is a cross-sectional view of the sealing ring taken along lines 5-5 from FIG. 3. 

CLAIM The ornamental design for a sealing ring for a pipe coupling, as shown. 